Messed some more with these tables and I have to say thanks. They make a huge difference.
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Messed some more with these tables and I have to say thanks. They make a huge difference.
i did mine once at 10% i like it!!!
Do you guys multiply ALL the tables or just the airflow table?
These tables look to have effect on calculated g/cyl or something similar.
Nope, just the one listed!!
There are some tables there that say airflow spark??
It could calculate engine torque from rate of acceleration! But that is another topic,!
oh ok, those tables are in the whole torque calculation loop. To figure out the torque the ECM needs to take in to account the timing, obviously to calculate the torque the timing must be taken in to account.
Which TPS value do you log to fill in the B3001, B3002, B3003 Airflow lookup tables?
Call me crazy, but I think an easy way to get these tables in the ballpark really quick would be to log the torque estimate resulting from the coefficients (see post #1) during a WOT run that starts from very low RPM. Then you could compare the CALCULATED torque to a reasonable engine torque calculation from the dyno (corrected from wheel torque) and come up with a single rough correction factor at each RPM breakpoint.
Then, instead of multiplying the whole table by some unknown factor, you could have a series of RPM-specific corrections. Each one would be applied to its own RPM row and all of them would get applied in a single ECU flash.
Then just re-run the WOT pull and see how close you got it across the RPM band. Like he said earlier, you don't need to be precise, just "close enough". This should take a bunch of the guesswork out of the calibration process and speed things up by avoiding the mindless poking about of constantly trying different random correction factors across the board until it "feels right." You should be able to get close in one or two carefully measured corrections.
So i should add 5% to all tables in the exhaust cam at 0 degrees ??
I've made these changes to the E38 tune.......will see how it goes at the track on Sunday, weather permitting.
My issues has always been getting the 350-370rwkw thru the transmission and down to the ground. The 1-2-3 gear change was always soooooo "stuttery"....if that's a word?! Well it is now.
See what happens :)
http://youtu.be/YbpgwjanEoo
A newish 2nd hand gear box makes a big difference. my original tranny was flogged out after 135K hard km's.
I have found if you have to bump the VE table a good bit then this table should not need much or any adjusting. Stock engines will need up to 20% bump to get a real firm shift, even with an additional 15% bump on the trans part throttle pressure settings.
VE table? The vve tables? or some of the tq model tables?
The "virtual" VE table. Basically airflow = power = firmness so OBV if the computer has a higher base airflow number you'll get higher output data.
OMG Tre-Cool, I almost shift myself :anitoof:
HI
gmpx is it just the 0.0 left hand column that you rise by 15% or the whole table
i tried to to put in a WORD page shot of the left column highlighted but it says only jpg, jpeg, png, giff , doesent it except word doc ?
thanks
Take a screenshot instead: click Shift-PrtScrn, open MS Paint, paste, save as .png.
THANKS JOE
i had to reload paint as it must have got deleted
OK guys here is the screen shot
is it just the first 0.0 column in the TORQUE MODEL (highlighted ) that is upped by 15% ,OR the whole table
thanks
Attachment 14080
Whole table
thanks
Rhino,
i'm assuming that it would be best to start with THE stock T43 tune ?
as the one i have in at the moment has had shift pressures and shift times , etc altered
Yeah, go back to the shock tune. You can change the shift times down a bit still or it will always battle to get them back to what it thinks it wants.
The other thing to consider, if you don't want harsher shifts at lower RPM's, don't mess with the torque table down there.
As for the Cam degree axis, for the Commodore it doesn't matter, just change all columns.
thanks for that
the other thing im trying to find is the GM.TRQENG in efilive scan dash page , i have it loaded in to the v2 from explorer>BBX but i cant seam to find it in the list when adding pids in the dash pages ?
well i upped the torque model 15% in the E38 and it didn't do any thing that i can feel to my MODED a6 tune ??
if you select NO in the torque management T43 on wot up shift does that cancel out the the torque table ?
6l80e
UP DATE
just for fun i reloaded the STOCK T43 tune with the + 15% in the the ecm WOW its just as good as the modded tune
and with the torque management set to NO in D9401 AND NONE in D9412 and D9414 its better then the modded tune a lot nicer shifts AND THE MANUEL SHIFT is way better it has got some real feel now
Have you played with the "Minimum Final Timing" in the ecm tune to go with your TCM adjustments yet?
yes i just thought it would make more off a differance to the moded tune so i went that with that first ?
WHen you get to a point with the 6l80s, it will go backwards in feel...lol.
should i up the SHIFT presures and TCC presures now as they are all still stock ? if so by how much %
with lots of torque 1024 NM showing on the TRQENG PID
1024nm in trqeng pid is plenty enough. mine show'd just over 1050 when i ran 10.6 the other night.
that is a great ET ,is that a record for A6 on street tyres ?
With VVT, do we just do the increase on all 4 tables with regard to RPM_Airflow?
Thanks,
John
I do, seems to work good.
As I have been digging trying to find a definite answer on reducing the amount of torque reduction on the shifts ( I see as much as 40+ degrees on the shifts on the E67/T43 CTS-V), it seems that no one really knows how to adjust it. It was asked on a couple of occasions which of the torque tables apply for a non adjustable cam in the LSA, with no clear response. Just 'the tables mentioned in this thread'. Well no specific tables have been called out. I am assuming that it is ALL of the tables listed under Normal fuel Exhaust CAM 0 Degrees, but haven't seen actual clarification. Also B5156 lists maximum spark retard for knock, torque reduction etc... which CLEARLY isn't an accurate description because my table is set to a maximum of -20 and I am seeing over 40 taken out. Would it be that difficult to list the tables and options SPECIFICALLY related to these changes by their table numbers?
easiest way it to adjust the ecu tune and the minimum timing table in the spark area.